diff --git a/app/lib/ui/devices.js b/app/lib/ui/devices.js
index eab5751..a5c1446 100644
--- a/app/lib/ui/devices.js
+++ b/app/lib/ui/devices.js
@@ -1,4 +1,4 @@
-var devices = {};
+const devices = {};
 
 devices.init = function () {
 	'use strict';
diff --git a/app/lib/ui/light.js b/app/lib/ui/light.js
index af476c1..03f6822 100644
--- a/app/lib/ui/light.js
+++ b/app/lib/ui/light.js
@@ -1,4 +1,4 @@
-var light = {};
+const light = {};
 
 //LIGHT
 light.preview_state = false; //light is on/off for preview viewing
diff --git a/app/lib/ui/log.js b/app/lib/ui/log.js
index 110625a..3314ddc 100644
--- a/app/lib/ui/log.js
+++ b/app/lib/ui/log.js
@@ -1,4 +1,4 @@
-var log = {};
+const log = {};
 
 log.time = 'MM/DD/YY-HH:mm:ss';
 log.count = 0;
diff --git a/app/lib/ui/mscript.js b/app/lib/ui/mscript.js
index 9283ab1..a17e5d6 100644
--- a/app/lib/ui/mscript.js
+++ b/app/lib/ui/mscript.js
@@ -1,4 +1,4 @@
-var mse = {};
+const mse = {};
 
 /******
 	Mscript GUI
diff --git a/app/lib/ui/nav.js b/app/lib/ui/nav.js
index 20b6b83..4848ad4 100644
--- a/app/lib/ui/nav.js
+++ b/app/lib/ui/nav.js
@@ -1,4 +1,4 @@
-var nav = {};
+const nav = {};
 
 //NAV
 nav.active = 'sequencer';
diff --git a/app/lib/ui/proj.js b/app/lib/ui/proj.js
index fe4a6e2..f6a1565 100644
--- a/app/lib/ui/proj.js
+++ b/app/lib/ui/proj.js
@@ -1,4 +1,4 @@
-var proj = {};
+const proj = {};
 
 proj.queue = {};
 proj.lock = false;